Small Modular Nuclear Reactors

Lord Birt Excerpts

Wednesday 22nd January 2025 Lords Chamber

[Lord Hunt of Kings Heath (Lab)]

My Lords, if a Government were suddenly to say to Sizewell C, “We’re not going ahead with it”, that would have a devastating impact on our nuclear industry. We are not going to do that. We are moving towards a final investment decision. I do not recognise some of the figures that have been quoted in the media recently. It is 80% replication of Hinkley Point C, but because of that, a lot of the risks have already been ironed out.

[Lord Birt (CB)]

My Lords, I am attracted in principle to the idea of small-scale nuclear reactors scattered across the country on small sites and not just in nuclear submarines. But I have attended a number of meetings with the industry and have no clarity on the economics of the technology and how they compare with alternative paths to net zero. Does the Minister think that the economics are clear yet? If not, will the Government set them out?

[Lord Hunt of Kings Heath (Lab)]

My Lords, there are two points to make. Our analysis is that, overall, a renewable-led system complemented by flexible technologies, alongside technologies such as nuclear, will form the cheapest foundation for our decarbonised power grid. The value for money for SMRs is a very good question. That is precisely why the work that Great British Nuclear is doing will be so important and why it then has to feed into more general discussions within government about the finance involved.